STAGING · HARDWARE DISABLED
SolarBrain
Night Cost Simulator
Back to SolarBrain
Learn first, then customize

See how one SolarBrain night works.

We’ll start with the original SolarBrain example so the logic is easy to understand. Then switch to “Try Your Own Numbers” and model your own tariffs, generator dependence, battery recharge and savings assumptions.

Original SolarBrain scenario

A full night, step by step.

10 kWh LiFePO4 battery 20A utility grid 10A generator $0.54/kWh generator
Utility tariff
Guided walkthrough
Step 1 of 4 — tap the glowing timeline card.

We’ll guide you through the night in order. Tap the glowing timeline card, then the next one that lights up.

12:30 AM – 2:30 AM (2.0 Hours)

Grid Sensed & 55A Flash Charge

Source: Utility Grid MCB: ON
Battery SOC
20% → 78%
55A DC Bulk Charging
With SolarBrain
$0.75
Without SolarBrain
$0.20
SolarBrain invests $0.55 more on inexpensive utility-grid flash charging here to avoid burning $2.70 of expensive generator energy at dawn.
Original overnight verdict
$2.90 $0.75 per night
Monthly savings
$64.50
Reduction
74.1%

Illustrative original SolarBrain model: 10 kWh battery, 2 hours of utility-grid charging at the selected tier, and replacing 5 hours of generator energy at $0.54/kWh. Actual results vary by setup and tariff.

Understand the example?
Now replace our assumptions with your actual night.
Your scenario

Now model your own night.

This calculator is intentionally more flexible than the example above. Change each assumption and see how the estimate responds.

Your Inputs

All cost fields are $/kWh.

Estimated savings
0%
per night
$0.00
Current strategy$0.00
Modeled smart strategy$0.00
Monthly projection
$0
Annual projection
$0

What changed?

Generator load displaced
0 kWh
Generator charging displaced
0 kWh
Generator energy before
0 kWh
Generator energy after
0 kWh
Estimator only. Results are based entirely on the assumptions you enter. They are not guaranteed and do not prove the “up to 70%” claim for your system.